摘要:
A microlens array includes a first lens, a second lens, and a third lens. The first lens and the second lens are adjacent to each other and are arranged neighboring in a first direction. The first lens and the third lens are adjacent to each other and are arranged neighboring in a second direction substantially orthogonal to the first direction. A gap between an apex of the first lens and an apex of the second lens is different to a gap between the apex of the first lens and an apex of the third lens.
摘要:
A microlens array includes a cell, and P lenses (P is an integer of 4 or more) arranged in the cell, in which the apexes of the P lenses are arranged such that symmetry is at least partially broken, when viewed in plan view. In this way, it is possible to suppress diffraction caused by regularity in the lens shape in the cell. Accordingly, it is possible to realize a microlens with a high utilization efficiency of light.
摘要:
A finder optical system 20 includes a focusing glass 21 including a collection surface 21a that collects a light beam and a diffusion surface 21b that diffuses the collected light beam, an eyepiece 23 that receives a part of the diffused light beam, a photometry lens 24 arranged near the eyepiece 23, and a photometry sensor 25 on which an image of another part of the light beam diffused by the diffusion surface 21b is formed via the photometry lens 24, a plurality of micro lenses are arranged on the diffusion surface 21b of the focusing glass 21, at least one micro lens of the plurality of micro lenses has at least two radii of curvature on its cross section in a predetermined direction, and the at least one micro lens satisfies R1
摘要:
A photographing apparatus includes: a reference contrast judging section acquiring, for each of parts of a first picked-up image obtained by an image pickup section performing image pickup at a first timing, a reference contrast; a recorded-image contrast judging section determining a contrast of each of parts of a second picked-up image obtained by the image pickup section performing image pickup for recording at a second timing later than the first timing; a focus judging section judging, for each of the parts, a state of focus of the second picked-up image by comparing the reference contrast and the contrast determined by the recorded-image contrast judging section; and a display control section displaying a judgment result together with the second picked-up image on a display section.
摘要:
A finder optical system 20 includes a focusing glass 21 including a collection surface 21a that collects a light beam and a diffusion surface 21b that diffuses the collected light beam, an eyepiece 23 that receives a part of the diffused light beam, a photometry lens 24 arranged near the eyepiece 23, and a photometry sensor 25 on which an image of another part of the light beam diffused by the diffusion surface 21b is formed via the photometry lens 24, a plurality of micro lenses are arranged on the diffusion surface 21b of the focusing glass 21, at least one micro lens of the plurality of micro lenses has at least two radii of curvature on its cross section in a predetermined direction, and the at least one micro lens satisfies R1
摘要:
A photographing apparatus is provided that accurately determines focus positions of two photographing sections in the same degree of time as in the past and a focus position determining method. A search range setting section 121 calculates one boundary value Pn′ of a second search area and calculates the other boundary value Pf′ of the second search area on the basis of a focus position P1 of a first focus lens FLA detected by an AF detecting section 120 and a boundary value N of a search area on a near side and a boundary value F of a search area on a far side. The AF detecting section 120 searches for a focus position P2 while instructing a second F lens driving section 104B to move a second focus lens FLB in a second search area (Pn′ to Pf′) narrower than a first search area.
摘要:
A method for editing recorded images from a digital video camera. which images are projected from a cine lens connected to the digital video camera onto an imaging disk and, from the latter, onto an electronic sensor assembly, which converts the recorded images into recording signals provided as raw or RGB data, is provided. At least one calibration image is recorded, from which correction values are calculated for the grain structure of the imaging disk and/or the vignetting in the edge region of the recorded images. The recorded images are linked to the correction values.
摘要:
Disclosed herein is an imaging device including a device main body, a focusing screen holding member configured to detachably hold a focusing screen, and a locking member configured to be provided between the focusing screen holding member and a lens attachment part of the device main body.
摘要:
A focusing screen for use in a camera has a diffusive surface having a plurality of random pattern cells of one or a plurality of types arranged two-dimensionally so as to form a macroscopically flat surface. The random pattern cells are each composed of a plurality of minute rectangular elements having one of two to eight types of heights, and the individual rectangular elements are arranged irregularly so as to constitute a plurality of types of diffraction gratings having different grating pitches.
摘要:
A focusing plate adjusting mechanism includes a focusing plate which is detachably attached to a camera body and on which an object image is formed, an adjusting frame which is adapted to adjust the axial position of the focusing plate, a biasing spring which presses the focusing plate against the adjusting frame, and at least one holder which is moved in association with the adjusting frame when the focusing plate is not attached and which presses the focusing plate toward the adjusting frame through the biasing spring when the focusing plate is attached to the camera body.